Foglight for Apache 7.1.0 - User and Reference Guide

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Reference

Foglight for Apache ships with predefined views to help you monitor your application server environment. This topic provides quick reference information about each view. Foglight for Apache displays monitoring data in views that group, format, and display data.

Dashboards are top-level views that do not receive data from other views. Dashboards usually contain several lower-level views. The dashboards supplied with Foglight for Apache, and those created by users, are available in the navigation panel.

Lower-level views in Foglight for Apache can be added to dashboards or can be accessed by drilling down from a dashboard. They receive and display data directly from the Foglight Management Server or from other views. Some views filter or select data that appears in other views in the same dashboard. Some are tree views with expandable nodes for selecting servers, applications, or data.

Web Server Details view

The Web Server Details view provides information about the monitored web server as well as detailed information about web server performance and web site performance on the Performance tab and Web Sites tab respectively.

You can drill down to this view by clicking a web server name on the Summary – All Apache Web Servers view, or by clicking Explore on the Summary – <WebServerName> view.


	TIP: To view the details for another web server without leaving this view, click the web server name in the upper left corner, and select another server from the list.

Figure 2. Monitored Information section

This section provides a breakdown of details pulled from the Server Information and Server Status pages of the web server, including the following:

Table 1. Monitored Information fields and definitions
Name	The configured display name of the Apache web server.
Version	The version number of the Apache web server.
Bindings	If the Apache web server has been configured using the Listen directive to listen for incoming connections on specific ports or selected addresses (or both), that binding information appears here.
Up since	The date and time the web server was last restarted.
Up time	The length of time since the web server was last restarted.
Host	The name of the machine that hosts the web server.
OS type	The operating system of the monitored host. NOTE: If the host is not monitored, the OS type is blank.
Process name	The process name is either httpd (for Apache versions 2.2 and 2.4) or Apache (for versions 1.3 and 2.0).
Total accesses since last up	The total number of times the web server was accessed since the last time it was restarted.
Total traffic since last up	The total amount of traffic (bandwidth used) by the web server since the last time it was restarted.

Performance tab

The Performance tab is divided into three sections: Worker Status, Performance, and Top 5 Busy Web Sites.

Worker Status

The Worker Status chart on the Performance tab helps you visualize the state of workers on the web server. Use the list of check boxes to show or hide the types of worker status that you want to review from the eleven types available.

Figure 3. Worker Status Chart

By default, all status types except Waiting for Connection and Open slot with no current process are selected and shown.

Performance

The Performance charts on the Performance tab provide an at-a-glance overview of four key web server metrics and their overall health: idle/busy workers, data throughput, open connections, and requests per second.

Figure 4. Performance Charts

The colored bar above each chart indicates the health of that metric. The color changes when an alarm occurs.

The Data Throughput and Requests per Second charts include a baseline envelope that enables you to quickly see when values are above or below the typical operating range. For more information about baselines, see Analyzing Activity Levels with IntelliProfile in the Foglight Administration and Configuration Guide.

Top 5 Busy Web Sites (Connection Count)

The Top 5 Busy Web Sites chart on the Performance tab allows you to compare the five web sites with the highest connection count.

Figure 5. Top 5 Busy Web Sites Chart

Web Site Summary

To view traffic details for a particular web site:

•

Click the name of the web site in the table below the chart.

Web Site Summary pop-up view opens.

Figure 6. Web Site Summary pop-up view

This view displays the Site Binding information (if available), and three charts: Connection Count, Client Count, and Traffic. You can also access this information on the Web Sites tab.

Related topics:

•

Investigating worker utilization

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Web Sites tab

The Web Sites tab lists all web sites hosted on the selected Apache web server. It also provides site binding information (if applicable), and connection count, client count, and traffic information.

To access the Web Sites tab:

•

On the Web Server Details view, click the Web Sites tab.

Figure 7. Web Sites Tab View

The Web Sites tab provides the following information for all sites hosted on the selected web server:

Table 2. Web Sites Tab fields and definitions
Web Site	Web site name.
Site Bindings	If the Apache web server has been configured using the Listen directive to listen for incoming connections on specific ports or selected addresses (or both), that binding information appears in this box.
Connections	Displays the current number of connections, as a numeric value, as well as a sparkline of the connection count trend over the time range selected in the zonar (for example, 4 hours). Hover the mouse pointer over the sparkline to open a graph of the connection count over time, or click the sparkline or count to open a Web Site Summary view.
Clients	Displays the current number of clients, as a numeric value, as well as a sparkline of the client count trend over the time range selected in the zonar (for example, 4 hours). Hover the mouse pointer over the sparkline to open a bar chart of the client count over time, or click the sparkline or count to open a Web Site Summary view.
Traffic	Displays the current traffic (bandwidth use) for the web site as a numeric value, as well as a sparkline of the traffic trend over the time range selected in the zonar (for example, 4 hours). Hover the mouse pointer over the sparkline to open a bar chart of the traffic over time, or click the sparkline or count to open a Web Site Summary view.

Click any row in the table to open the Web Site Summary view for the selected web site.

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Foglight for Apache 7.1.0 - User and Reference Guide

Reference

Web Server Details view

Performance tab

Web Sites tab